UME Core

UME Core is the core library of UME, including the UME framework and basic components.

If you need to use UME's built-in components, just add ume to your pubspec.yaml without adding ume_core.

If you need to develop custom UME plugins or use non-built-in components, you need to add ume_core.

Develop plugin kits for UME

UME plugins are located in the ./kits directory, and each one is a package. You can refer to the example in ./custom_plugin_example about this chapter.

Run flutter create -t package custom_plugin to create your custom plugin kit, it could be package or plugin.
Edit pubspec.yaml of the custom plugin kit to add UME framework dependency.
```
dependencies:
  ume_core: ^2.0.0
```

Create the class of the plugin kit which should implement Pluggable.

import 'package:ume_core/ume_core.dart';

class CustomPlugin implements Pluggable {
  CustomPlugin({Key key});

  @override
  Widget buildWidget(BuildContext context) => Container(
    color: Colors.white
    width: 100,
    height: 100,
    child: Center(
      child: Text('Custom Plugin')
    ),
  ); // The panel of the plugin kit

  @override
  String get name => 'CustomPlugin'; // The name of the plugin kit

  @override
  String get displayName => 'CustomPlugin';

  @override
  void onTrigger() {} // Call when tap the icon of plugin kit

  @override
  ImageProvider<Object> get iconImageProvider => NetworkImage('url'); // The icon image of the plugin kit
}

Use your custom plugin kit in project
1. Edit pubspec.yaml of host app project to add custom_plugin dependency.
```
dev_dependencies:
  custom_plugin:
    path: path/to/custom_plugin
```
2. Run flutter pub get
3. Import package
```
import 'package:custom_plugin/custom_plugin.dart';
```

Edit main method of your app, register your custom_plugin plugin kit

if (kDebugMode) {
  PluginManager.instance
    ..register(CustomPlugin());
  runApp(
    UMEWidget(
      child: MyApp(),
      enable: true
    )
  );
} else {
  runApp(MyApp());
}

Run your app

We introduce the PluggableWithNestedWidget from 0.3.0. It is used to insert nested Widgets in the Widget tree and quickly access embedded kits with nested widget.

For more details, see ./kits/ume_kit_ui/lib/components/color_picker/color_picker.dart and ./kits/ume_kit_ui/lib/components/touch_indicator/touch_indicator.dart.

The key steps are as follows:

The class of your plugin should implement PluggableWithNestedWidget.
Implements Widget buildNestedWidget(Widget child). Handling the nested widgets and returning the new Widget.

UME Core

Develop plugin kits for UME

Access the nested widget debug kits quickly

Libraries

ume_core package